aboutsummaryrefslogtreecommitdiffstats
path: root/railties/lib/rails/generators/app_base.rb
blob: 71186891a3ebf364a0d7d05b358f24feb29c4b1c (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
require 'digest/md5'
require 'active_support/core_ext/string/strip'
require 'rails/version' unless defined?(Rails::VERSION)
require 'open-uri'
require 'uri'
require 'rails/generators'
require 'active_support/core_ext/array/extract_options'

module Rails
  module Generators
    class AppBase < Base # :nodoc:
      DATABASES = %w( mysql oracle postgresql sqlite3 frontbase ibm_db sqlserver )
      JDBC_DATABASES = %w( jdbcmysql jdbcsqlite3 jdbcpostgresql jdbc )
      DATABASES.concat(JDBC_DATABASES)

      attr_accessor :rails_template
      add_shebang_option!

      argument :app_path, type: :string

      def self.strict_args_position
        false
      end

      def self.add_shared_options_for(name)
        class_option :template,           type: :string, aliases: '-m',
                                          desc: "Path to some #{name} template (can be a filesystem path or URL)"

        class_option :skip_gemfile,       type: :boolean, default: false,
                                          desc: "Don't create a Gemfile"

        class_option :skip_bundle,        type: :boolean, aliases: '-B', default: false,
                                          desc: "Don't run bundle install"

        class_option :skip_git,           type: :boolean, aliases: '-G', default: false,
                                          desc: 'Skip .gitignore file'

        class_option :skip_keeps,         type: :boolean, default: false,
                                          desc: 'Skip source control .keep files'

        class_option :skip_action_mailer, type: :boolean, aliases: "-M",
                                          default: false,
                                          desc: "Skip Action Mailer files"

        class_option :skip_active_record, type: :boolean, aliases: '-O', default: false,
                                          desc: 'Skip Active Record files'

        class_option :skip_sprockets,     type: :boolean, aliases: '-S', default: false,
                                          desc: 'Skip Sprockets files'

        class_option :skip_spring,        type: :boolean, default: false,
                                          desc: "Don't install Spring application preloader"

        class_option :database,           type: :string, aliases: '-d', default: 'sqlite3',
                                          desc: "Preconfigure for selected database (options: #{DATABASES.join('/')})"

        class_option :javascript,         type: :string, aliases: '-j', default: 'jquery',
                                          desc: 'Preconfigure for selected JavaScript library'

        class_option :skip_javascript,    type: :boolean, aliases: '-J', default: false,
                                          desc: 'Skip JavaScript files'

        class_option :dev,                type: :boolean, default: false,
                                          desc: "Setup the #{name} with Gemfile pointing to your Rails checkout"

        class_option :edge,               type: :boolean, default: false,
                                          desc: "Setup the #{name} with Gemfile pointing to Rails repository"

        class_option :skip_turbolinks,    type: :boolean, default: false,
                                          desc: 'Skip turbolinks gem'

        class_option :skip_test_unit,     type: :boolean, aliases: '-T', default: false,
                                          desc: 'Skip Test::Unit files'

        class_option :rc,                 type: :string, default: false,
                                          desc: "Path to file containing extra configuration options for rails command"

        class_option :no_rc,              type: :boolean, default: false,
                                          desc: 'Skip loading of extra configuration options from .railsrc file'

        class_option :help,               type: :boolean, aliases: '-h', group: :rails,
                                          desc: 'Show this help message and quit'
      end

      def initialize(*args)
        @gem_filter    = lambda { |gem| true }
        @extra_entries = []
        super
        convert_database_option_for_jruby
      end

    protected

      def gemfile_entry(name, *args)
        options = args.extract_options!
        version = args.first
        github = options[:github]
        path   = options[:path]

        if github
          @extra_entries << GemfileEntry.github(name, github)
        elsif path
          @extra_entries << GemfileEntry.path(name, path)
        else
          @extra_entries << GemfileEntry.version(name, version)
        end
        self
      end

      def gemfile_entries
        [rails_gemfile_entry,
         database_gemfile_entry,
         assets_gemfile_entry,
         javascript_gemfile_entry,
         jbuilder_gemfile_entry,
         sdoc_gemfile_entry,
         psych_gemfile_entry,
         @extra_entries].flatten.find_all(&@gem_filter)
      end

      def add_gem_entry_filter
        @gem_filter = lambda { |next_filter, entry|
          yield(entry) && next_filter.call(entry)
        }.curry[@gem_filter]
      end

      def builder
        @builder ||= begin
          builder_class = get_builder_class
          builder_class.send(:include, ActionMethods)
          builder_class.new(self)
        end
      end

      def build(meth, *args)
        builder.send(meth, *args) if builder.respond_to?(meth)
      end

      def create_root
        valid_const?

        empty_directory '.'
        FileUtils.cd(destination_root) unless options[:pretend]
      end

      def apply_rails_template
        apply rails_template if rails_template
      rescue Thor::Error, LoadError, Errno::ENOENT => e
        raise Error, "The template [#{rails_template}] could not be loaded. Error: #{e}"
      end

      def set_default_accessors!
        self.destination_root = File.expand_path(app_path, destination_root)
        self.rails_template = case options[:template]
          when /^https?:\/\//
            options[:template]
          when String
            File.expand_path(options[:template], Dir.pwd)
          else
            options[:template]
        end
      end

      def database_gemfile_entry
        return [] if options[:skip_active_record]
        GemfileEntry.version gem_for_database, nil,
                            "Use #{options[:database]} as the database for Active Record"
      end

      def include_all_railties?
        options.values_at(:skip_active_record, :skip_action_mailer, :skip_test_unit, :skip_sprockets).none?
      end

      def comment_if(value)
        options[value] ? '# ' : ''
      end

      def sqlite3?
        !options[:skip_active_record] && options[:database] == 'sqlite3'
      end

      class GemfileEntry < Struct.new(:name, :version, :comment, :options, :commented_out)
        def initialize(name, version, comment, options = {}, commented_out = false)
          super
        end

        def self.github(name, github, branch = nil, comment = nil)
          if branch
            new(name, nil, comment, github: github, branch: branch)
          else
            new(name, nil, comment, github: github)
          end
        end

        def self.version(name, version, comment = nil)
          new(name, version, comment)
        end

        def self.path(name, path, comment = nil)
          new(name, nil, comment, path: path)
        end
      end

      def rails_gemfile_entry
        if options.dev?
          [
            GemfileEntry.path('rails', Rails::Generators::RAILS_DEV_PATH),
            GemfileEntry.github('arel', 'rails/arel')
          ]
        elsif options.edge?
          [
            GemfileEntry.github('rails', 'rails/rails'),
            GemfileEntry.github('arel', 'rails/arel')
          ]
        else
          [GemfileEntry.version('rails',
                            Rails::VERSION::STRING,
                            "Bundle edge Rails instead: gem 'rails', github: 'rails/rails'")]
        end
      end

      def gem_for_database
        # %w( mysql oracle postgresql sqlite3 frontbase ibm_db sqlserver jdbcmysql jdbcsqlite3 jdbcpostgresql )
        case options[:database]
        when "oracle"         then "ruby-oci8"
        when "postgresql"     then "pg"
        when "frontbase"      then "ruby-frontbase"
        when "mysql"          then "mysql2"
        when "sqlserver"      then "activerecord-sqlserver-adapter"
        when "jdbcmysql"      then "activerecord-jdbcmysql-adapter"
        when "jdbcsqlite3"    then "activerecord-jdbcsqlite3-adapter"
        when "jdbcpostgresql" then "activerecord-jdbcpostgresql-adapter"
        when "jdbc"           then "activerecord-jdbc-adapter"
        else options[:database]
        end
      end

      def convert_database_option_for_jruby
        if defined?(JRUBY_VERSION)
          case options[:database]
          when "oracle"     then options[:database].replace "jdbc"
          when "postgresql" then options[:database].replace "jdbcpostgresql"
          when "mysql"      then options[:database].replace "jdbcmysql"
          when "sqlite3"    then options[:database].replace "jdbcsqlite3"
          end
        end
      end

      def assets_gemfile_entry
        return [] if options[:skip_sprockets]

        gems = []
        gems << GemfileEntry.version('sass-rails', '~> 5.0',
                                     'Use SCSS for stylesheets')

        gems << GemfileEntry.version('uglifier',
                                   '>= 1.3.0',
                                   'Use Uglifier as compressor for JavaScript assets')

        gems
      end

      def jbuilder_gemfile_entry
        comment = 'Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder'
        GemfileEntry.version('jbuilder', '~> 2.0', comment)
      end

      def sdoc_gemfile_entry
        comment = 'bundle exec rake doc:rails generates the API under doc/api.'
        GemfileEntry.new('sdoc', '~> 0.4.0', comment, group: :doc)
      end

      def coffee_gemfile_entry
        comment = 'Use CoffeeScript for .coffee assets and views'
        if options.dev? || options.edge?
          GemfileEntry.github 'coffee-rails', 'rails/coffee-rails', nil, comment
        else
          GemfileEntry.version 'coffee-rails', '~> 4.1.0', comment
        end
      end

      def javascript_gemfile_entry
        if options[:skip_javascript]
          []
        else
          gems = [coffee_gemfile_entry, javascript_runtime_gemfile_entry]
          gems << GemfileEntry.version("#{options[:javascript]}-rails", nil,
                                       "Use #{options[:javascript]} as the JavaScript library")

          unless options[:skip_turbolinks]
            gems << GemfileEntry.version("turbolinks", nil,
             "Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks")
          end

          gems
        end
      end

      def javascript_runtime_gemfile_entry
        comment = 'See https://github.com/sstephenson/execjs#readme for more supported runtimes'
        if defined?(JRUBY_VERSION)
          GemfileEntry.version 'therubyrhino', nil, comment
        else
          GemfileEntry.new 'therubyracer', nil, comment, { platforms: :ruby }, true
        end
      end

      def psych_gemfile_entry
        return [] unless defined?(Rubinius)

        comment = 'Use Psych as the YAML engine, instead of Syck, so serialized ' \
                  'data can be read safely from different rubies (see http://git.io/uuLVag)'
        GemfileEntry.new('psych', '~> 2.0', comment, platforms: :rbx)
      end

      def bundle_command(command)
        say_status :run, "bundle #{command}"

        # We are going to shell out rather than invoking Bundler::CLI.new(command)
        # because `rails new` loads the Thor gem and on the other hand bundler uses
        # its own vendored Thor, which could be a different version. Running both
        # things in the same process is a recipe for a night with paracetamol.
        #
        # We use backticks and #print here instead of vanilla #system because it
        # is easier to silence stdout in the existing test suite this way. The
        # end-user gets the bundler commands called anyway, so no big deal.
        #
        # We unset temporary bundler variables to load proper bundler and Gemfile.
        #
        # Thanks to James Tucker for the Gem tricks involved in this call.
        _bundle_command = Gem.bin_path('bundler', 'bundle')

        require 'bundler'
        Bundler.with_clean_env do
          output = `"#{Gem.ruby}" "#{_bundle_command}" #{command}`
          print output unless options[:quiet]
        end
      end

      def bundle_install?
        !(options[:skip_gemfile] || options[:skip_bundle] || options[:pretend])
      end

      def spring_install?
        !options[:skip_spring] && Process.respond_to?(:fork) && !RUBY_PLATFORM.include?("cygwin")
      end

      def run_bundle
        bundle_command('install') if bundle_install?
      end

      def generate_spring_binstubs
        if bundle_install? && spring_install?
          bundle_command("exec spring binstub --all")
        end
      end

      def empty_directory_with_keep_file(destination, config = {})
        empty_directory(destination, config)
        keep_file(destination)
      end

      def keep_file(destination)
        create_file("#{destination}/.keep") unless options[:skip_keeps]
      end
    end
  end
end